CN109580969B

CN109580969B - Sample rack transfer device, sample rack loading system and chemiluminescence detector

Info

Publication number: CN109580969B
Application number: CN201710911663.2A
Authority: CN
Inventors: 朱亮; 陈晓涛; 张谭; 张雄杰; 周刚; 王敏
Original assignee: Shenzhen New Industries Biomedical Engineering Co Ltd
Current assignee: Shenzhen New Industries Biomedical Engineering Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2022-07-12
Anticipated expiration: 2037-09-29
Also published as: CN109580969A

Abstract

The invention relates to a sample rack transfer device, a sample rack loading system and a chemiluminescence detector. The sample rack transfer device comprises a mounting rack, a transfer track, a rocker arm, a reset assembly and a sample rack driving mechanism; the rocker arm is rotatably connected to the mounting frame and is provided with a first end and a second end which are respectively positioned at two sides of the rotating axis; the sample rack driving mechanism comprises a guide structure, a sample rack grabbing assembly and a sample rack driving assembly; the guide structure is arranged on the mounting rack in parallel with the transfer track; the sample rack grabbing component is used for grabbing or releasing the sample rack; the sample rack driving assembly is used for driving the sample rack grabbing assembly to move along the guide structure; when the sample frame grabbing component moves to the first end of the rocker arm, the sample frame grabbing component stirs the first end of the rocker arm to enable the second end of the rocker arm to leave the stop mechanism; when the sample rack grabbing assembly leaves the first end of the rocker arm, the reset assembly drives the second end of the rocker arm to abut against the stop mechanism. Therefore, the stop mechanism can be regulated and controlled without arranging a control device.

Description

Sample frame transfer device, sample frame loading system and chemiluminescence detector

Technical Field

The invention relates to the technical field of medical instruments, in particular to a sample rack transfer device, a sample rack loading system and a chemiluminescence detector.

Background

The chemiluminescence detector can be used for immunologically and quantitatively analyzing a body fluid sample of a patient, such as a blood sample, so that the aim of detecting various symptoms such as cardiovascular diseases or anemia is fulfilled. In analysis, a sample tube is supplied to the sample application arm, and the sample tube is generally loaded in a sample rack.

When the sample rack is stored in the sample seat, the sample rack is transferred between the sample seat and the sample rack transfer device by generally adopting an up-and-down clamping mechanical arm, and can also be transferred in a rail translation mode; however, the sample rack is easy to drop to cause sample damage by adopting a mode of clamping the mechanical arm up and down; and the sample rack may slip off the rail in a manner of translation of the rail. Although the baffle plate can be adopted on the track to block the sample rack from slipping, a control device is required to regulate and control the state of the baffle plate so as to block or conduct the transmission channel; this clearly complicates the plant mechanics and the lack of coordination of actions between the mechanics can lead to plant failure.

Disclosure of Invention

Therefore, there is a need for a sample rack transfer device that automatically controls the conduction status of the transmission channel.

A sample rack transfer device for moving a sample rack out of or into a sample holder; the sample seat is provided with a material conveying port for the sample rack to move out or in, and a stop mechanism is arranged at the material conveying port of the sample seat; the sample rack transferring device comprises an installation frame, a transferring track, a rocker arm, a resetting component and a sample rack driving mechanism; the mounting frame supports the transfer rail on one side of the material conveying opening; the rocker arm is rotatably connected to the side wall of the mounting frame and is provided with a first end and a second end which are opposite; the reset assembly drives the rocker arm to rotate so that the second end of the rocker arm abuts against the stop mechanism and the stop mechanism is in a second state; the sample rack driving mechanism comprises a sample rack grabbing component and a sample rack driving component; the sample rack grabbing component is used for grabbing or releasing the sample rack; the sample rack driving assembly drives the sample rack grabbing assembly to move along the transfer track; when the sample holder grabbing component moves to the first end of the rocker arm, the sample holder grabbing component stirs the first end of the rocker arm to enable the second end of the rocker arm to leave the stopping mechanism, so that the stopping mechanism is in a first state.

In one embodiment, the sample rack drive mechanism further comprises a guide structure disposed on the mounting rack parallel to the transfer track; the sample frame grabbing component is connected with the guide structure in a sliding mode through a sliding seat.

In one embodiment, an abutting inclined surface is arranged at the top of the sliding seat, and when the sliding seat is close to the first end of the rocker arm along the guide structure, the first end of the rocker arm abuts against the sliding seat and moves upwards along the abutting inclined surface.

In one embodiment, the guide structure is a linear guide rail or a guide chute arranged on the inner side wall of the mounting rack.

In one embodiment, the first end of the rocker arm is provided with a first rolling bearing, so that when the sliding seat is close to the first end of the rocker arm, the first rolling bearing is in rolling contact with the sliding seat; and a second rolling bearing is arranged at the second end of the rocker arm, so that when the second end of the rocker arm is abutted against the stop mechanism, the second rolling bearing is in rolling abutting joint with the stop mechanism.

In one embodiment, the reset component is a pressure spring or a tension spring; the both ends of pressure spring or extension spring respectively with the mounting bracket with the rocking arm is connected, will the second end of rocking arm supports and presses on stop mechanism.

In one embodiment, the sample rack drive assembly comprises a drive wheel, a driven wheel, a synchronous belt and a motor; the driving wheel is mounted on an output shaft of the motor, the driven wheel is fixed on the mounting frame, and the synchronous belt is sleeved on the driving wheel and the driven wheel; the sample frame grabbing component is connected with the synchronous belt; when the motor drives the driving wheel to rotate, the synchronous belt drives the sample frame grabbing assembly to move along the guide structure.

In one embodiment, the sample rack grabbing component comprises an electromagnet and an electromagnet ejector rod; the electromagnet ejector rod can move up and down in a telescopic mode so as to lock or release connection with the sample rack.

In one embodiment, the sample rack transfer device further comprises a spring roller mechanism; the elastic pressing roller mechanism is used for pre-pressing the sample rack sliding through the transfer track on one side of the transfer track so as to enable the sample rack to stably move along the transfer track.

In one embodiment, the spring roller mechanism comprises a roller and a spring member; the roller is connected to one side of the transfer rail through the elastic pressing piece and abuts against the other side of the transfer rail under the action of the elastic pressing piece.

The embodiment of the invention also provides a sample rack loading system, which comprises a sample rack transmission device and the sample rack transfer device; the sample rack transfer device is arranged between the sample rack storage device and the sample rack transmission device so as to transfer the sample rack between the sample rack storage device and the sample rack transmission device.

In one embodiment, the sample rack storage device comprises a plurality of sample seats arranged in parallel, and the material delivery openings of the sample seats face the same side of the sample rack transfer device.

In one embodiment, the sample rack transfer device further comprises a moving assembly, so that the transfer rails on the mounting rack can be respectively butted with the material conveying ports of the plurality of sample seats to transfer the sample racks.

In one embodiment, the moving assembly comprises a translation guide rail and a drive motor; the translation guide rail transversely extends along the material conveying openings of the sample seats; the mounting bracket sliding connection be in on the translation guide rail, driving motor is used for the drive the mounting bracket is followed the translation guide rail removes.

In one embodiment, the sample rack transport device comprises a track assembly and a sample rack blocking mechanism, the sample rack blocking mechanism is arranged on one side of the track assembly close to the sample rack transfer device, and the sample rack blocking mechanism is used for blocking or conducting a transport channel of the track assembly; the sample rack transfer device is provided with a guide block, and when a transfer track of the sample rack transfer device is in butt joint with the transmission channel, the guide block drives the sample rack blocking piece mechanism to conduct the transmission channel; otherwise, the sample rack blocking piece mechanism blocks the transmission channel.

In one embodiment, the sample rack blocking piece mechanism comprises a mounting plate, a blocking piece and an elastic element; the mounting plate is fixed on one side of the transmission channel, which is close to the sample rack transfer device; the blocking piece is connected with the mounting plate and can move between a blocking position and a conducting position relative to the mounting plate; the elastic element is arranged between the blocking piece and the mounting plate so that the blocking piece is elastically connected with the mounting plate and is arranged at the blocking position; when the transfer track is in butt joint with the transmission channel, the guide block abuts against the blocking piece to place the blocking piece at the conduction position;

the blocking position is the position when the blocking piece blocks the transmission channel, and the conducting position is the position when the blocking piece conducts the transmission channel.

In one embodiment, the stopping mechanism comprises a stopping member and an elastic member, wherein the elastic member is used for keeping the stopping member in the first state, and the stopping member can be placed in the second state by pressing the stopping member and overcoming the elastic force of the elastic member.

In one embodiment, the rotating member and the hinge member; the rotating part is connected to the sample seat through the hinge part, and the stop part extends out from one end of the rotating part close to the material conveying port and is located at the material conveying port.

In one embodiment, the hinge is located between the stopper and the resilient member; two ends of the elastic piece are respectively abutted against the rotating piece and the sample seat, and the elastic piece can be compressed to allow the rotating piece to rotate around the hinged piece, so that the rotating piece drives the stop piece to move to the second state.

In one embodiment, the resilient member is a compression spring that is compressible to cause the stop member to be in the second state when the rotating member rotates about the hinge member.

Correspondingly, the embodiment of the invention also provides a chemiluminescence detector which comprises the sample rack loading system.

According to the sample rack transfer device provided by the invention, the sample rack driving mechanism drives the stop mechanism stopped at the material conveying port while transferring the sample rack, so that the condition of the conveying channel can be regulated and controlled without arranging an independent control mechanism.

Drawings

FIG. 1 is a schematic diagram of a sample rack loading system according to one embodiment;

FIG. 2 is a schematic view of another embodiment of a sample rack loading system;

FIG. 3 is an enlarged partial view of the structure of the circle segment of FIG. 1;

FIG. 4 is an enlarged partial view of the structure of the collar portion of FIG. 2;

FIG. 5 is a schematic view of the structure of the sample rack loaded in the sample holder;

FIG. 6 is an exploded view of a sample holder according to one embodiment;

FIG. 7 is a schematic view of the structure of a sample rack transfer device according to an embodiment;

FIG. 8 is a schematic structural view of a mount according to an embodiment;

FIG. 9 is a schematic view of the internal structure of the sample rack transfer device according to an embodiment;

FIG. 10 is a schematic diagram of the structure of the sample rack grasping assembly and the sample rack driving assembly in one embodiment;

FIG. 11 is a schematic view of another perspective of the sample rack transfer device according to one embodiment;

FIG. 12 is a schematic structural diagram of a track assembly according to one embodiment;

FIG. 13 is a schematic view of another embodiment of a track assembly;

FIG. 14 is a schematic view of the guide block being moved laterally from the left side in one embodiment;

FIG. 15 is a schematic view of one embodiment of a guide block being driven off a first stop plate;

FIG. 16 is a schematic view of the guide block being driven off the second stop in one embodiment;

FIG. 17 is a schematic view of an embodiment of a guide block being driven off a third stop;

FIG. 18 is a schematic view of an exemplary embodiment of an installation structure between the shaft, the torsion spring, and the mounting plate;

FIG. 19 is a schematic view of the guide block abutting the roller from the left side of the first flap according to one embodiment;

FIG. 20 is a schematic view of a guide block pressing against a first stop plate according to an embodiment;

FIG. 21 is a schematic view of the guide block abutting the roller from the right side of the first flap according to one embodiment;

FIG. 22 is a schematic view of the guide shoe abutting the roller from the left side of the second stop in one embodiment;

FIG. 23 is a diagram illustrating the guide block abutting against the second stop in one embodiment;

FIG. 24 is a schematic view of the guide block abutting the roller from the right side of the second stop in one embodiment

FIG. 25 is a schematic view of the guide block abutting the roller from the left side of the third stop in one embodiment;

FIG. 26 is a schematic view of a guide block pressing against a third tab in one embodiment;

FIG. 27 is a schematic structural diagram of a damper mechanism according to one embodiment;

FIG. 28 is a schematic view of a transmission blocking mechanism according to an embodiment;

FIG. 29 is a schematic view of a barrier of the transport barrier mechanism in a first position according to one embodiment;

FIG. 30 is a schematic view of the barrier of the transport barrier mechanism in a second position according to one embodiment.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 to 4, a sample rack loading system includes a sample rack storage device 100, a sample rack transport device 300, and a sample rack transfer device 200. The sample rack transfer device 200 is provided between the sample rack storage device 100 and the sample rack transport device 300 to enable transfer of the sample rack 400 between the sample rack storage device 100 and the sample rack transport device 300.

As shown in connection with fig. 5 and 6, in some embodiments, the sample rack storage device 100 includes a sample holder 110 for storing a sample rack 400; the sample holder 110 has a feeding port 111 for moving the sample rack 400 in and out; a stopping mechanism 112 is arranged at the material delivery port 111 of the sample holder 110. Specifically, the stopper mechanism 112 includes a stopper 1121 and an elastic member; the stopper 1121 has a first state of blocking the material feeding port 111 and a second state of conducting the material feeding port 111; the elastic member is used to maintain the stopper 1121 in the first state, and press the stopper 1121 and overcome the elastic force of the elastic member to place the stopper 1121 in the second state. It can be understood that the elastic member can keep the stopper 1121 in the first state without an external force pressing against the stopper 1121, that is, the stopper 1121 blocks the feeding port 111 of the sample holder 110. The stopper 1121 prevents the sample rack 400 from slipping out of the sample holder 110, and also prevents the sample rack 400 from being pushed out of the material feeding port 111 of the sample rack 400 when the sample holder 400 is loaded on the side 120 of the sample holder 110 away from the material feeding port 111. In addition, when the sample rack 400 is loaded into the sample holder 110, the sample rack 400 can be accurately placed into the sample holder 110 by abutting the sample rack 400 against the stopper 1121, which greatly improves the efficiency of loading the sample rack 400 into the sample holder 110.

In the above embodiments, the stopper 1121 can be switched between the first state and the second state in various ways. The specific structure of the stopping mechanism 112 will be further described below in order to switch the stopper 1121 between the first state and the second state in a rotating manner.

Referring to fig. 6, in some embodiments, the stopping mechanism 112 further comprises a rotating member 1123 and a hinged member 1124; the rotating member 1123 is rotatably connected to the sample holder 110 via a hinge 1124, and the stopper 1121 is extended from an end 1123a (hereinafter referred to as a first end 1123a) of the rotating member 1123 near the material feeding port 111 and is located at the material feeding port 111. When the rotating member 1123 rotates around the hinge member 1124 relative to the sample holder 110, the stopper 1121 correspondingly rotates around the hinge member 1124, and this rotation has the effect of switching the stopper 1121 between the first state and the second state; the rotating member 1123 rotates around the hinge member 1124 under the driving of the elastic member, and finally the stopping member 1121 maintains the first state of stopping the material feeding hole 111. The hinge 1124 allows for rotation of the rotating member 1123 relative to the sample holder 110, and may be either a pin or bearing arrangement.

In some embodiments, the hinge 1124 is located between the stop 1121 and the resilient member; the two ends of the elastic member respectively abut against the rotating member 1123 and the sample holder 110, and the elastic member can be compressed when receiving an external force to allow the rotating member 1123 to rotate around the hinge member 1124, so that the rotating member 1123 drives the stopper 1121 to move to the second state.

Specifically, referring to fig. 6, in the present embodiment, the elastic member is a compression spring 1122, and the compression spring 1122 presses one end 1123b (hereinafter, referred to as a second end 1123b) of the rotating member 1123 away from the stopper 1121 downward, so that the stopper 1121 at the other end of the rotating member 1123 moves to the first state. When the reaction force of the pressing spring 1122 is applied to the rotating member 1123, the rotating member 1123 will move the stopper 1121 from the first state to the second state, so as to open the feeding opening 111 of the sample holder 110.

In other embodiments, the elastic member may also be a tension spring and is located between the stopper 1121 and the hinge member 1124; two ends of the tension spring are respectively connected with the rotating piece 1123 and the sample holder 110; when the external force overcomes the pulling force of the tension spring to pull the tension spring, the rotating member 1123 rotates around the hinge member 1124, and the stopper 1121 is driven to move to the second state.

In the above embodiments, the compression spring and the tension spring are only specific applications of the elastic member in some embodiments, and of course, the elastic member may also be a rod body having elastic bending or contraction performance, which is not enumerated herein.

Referring to fig. 6, in some embodiments, a mounting groove 113 is formed on a side wall of the sample holder 110, and a first limiting member 114 and a second limiting member 115 are disposed in the mounting groove 113; the first position-limiting element 114 and the second position-limiting element 115 are disposed on the track of the rotating element 1123 rotating around the hinge 1124, so as to limit the rotating amplitude of the rotating element 1123 rotating around the hinge 1124 within a certain range. In addition, a cushion pad may be further disposed on the limiting member to cushion the impact force between the rotating member 1123 and the limiting member during rotation.

Specifically, in some embodiments, the first limiting member 114 and the second limiting member 115 may be rod-shaped structures, and a first buffering member 1141 and a second buffering member 1151 are respectively sleeved on the rod-shaped structures. It is understood that, in order to realize that the stopper 1121 on the rotating member 1123 can be switched between the first state and the second state, the first limiting member 114 and the second limiting member 115 are provided as: when the rotating member 1123 rotates around the hinge member 1124 to abut against the first position-limiting member 114, the stop member 1121 is in the first state; when the rotating member 1123 rotates around the hinge member 1124 to abut against the second position-limiting member 115, the stop member 1121 is in the second state. The installation groove 113 provided in the present embodiment facilitates the assembly of the stopping mechanism 112, and can prevent the stopping mechanism 112 from extending out from the side surface of the sample holder 110 to affect the storage effect of the sample holder 400 in the sample holder 110; and the space occupied by the stopper mechanism 112 disposed in the mounting groove 113 of the side wall can be reduced.

Referring to fig. 6, in some embodiments, the sample holder 110 is connected to a cover plate 116 at the mounting groove 113, so as to accommodate the stopping mechanism 112 between the cover plate 116 and the sample holder 110; the cover plate 116 is provided with a mounting hole 1161, one end of the hinge member 1124 is connected to the sample holder 110, and the other end is inserted into the mounting hole 1161 of the cover plate 116. The second end 1123b of the rotating member 1123 away from the material feeding port 111 extends from the bottom of the sample holder 110, and pressing or pulling the second end 1123b of the rotating member 1123 can rotate the rotating member 1123 around the hinge member 1124, so as to switch the stopper 1121 connected to the rotating member 1123 between the first state and the second state.

Referring to fig. 6, in some embodiments, the rotating member 1123 is provided with a rolling member 117 between the stopper 1121 and the hinge member 1124; the rolling member 117 abuts against the sample holder 110, so that when the rotating member 1123 rotates around the hinge member 1124, the rolling member 117 rolls along the rotating track relative to the sample holder 110, thereby preventing the rotating member 1123 from rubbing the sample holder 110 when rotating, making the rotating effect smoother, and preventing the structural stability of the stopping mechanism 112 from being damaged due to long-term rubbing. It will be appreciated that the rolling members 117 may be ball or roller bearings. Correspondingly, a hole 11231 for mounting the roller 117 may be provided in the rotor 1123.

Referring to fig. 7, in some embodiments, the sample rack transfer device 200 includes a mounting rack 210, a transfer rail 220, a swing arm 230, a reset assembly, and a sample rack drive mechanism 250. The mount 210 supports the transfer rail 220 on the side of the supply port 111 of the sample holder 110, so that a path for transferring the sample holder 400 can be formed between the transfer rail 220 and the supply port 111 of the sample holder 110. The swing arm 230 is rotatably connected to the sidewall of the mounting frame 210 and can rotate around a rotation axis; one end of the rocker arm 230 is disposed below the stopping mechanism 112, so that when the rocker arm 230 rotates around the rotation axis, the stopping mechanism 112 can be driven to move from the first state to the second state, and the material conveying port 111 of the sample holder 110 is communicated, so that the sample rack 400 can be transferred between the sample holder 110 and the transfer track 220. Specifically, the reset component is used to drive the rocker arm 230 to rotate around the rotation axis, so that the rocker arm 230 drives the rotating component 1123 of the stopping mechanism 112 to rotate around the hinge member 1124, and further drives the stopping member 1121 to move to the second state. It will be appreciated that when the rocker arm 230 does not apply a force to the rotating member 1123, the rotating member 1123 rotates about the hinge member 1124 under the action of the elastic member to move and maintain the stopper 1121 in the first state. That is, the swinging arm 230 can select the position of the stopper 1121 of the stopping mechanism 112 to selectively communicate with or block the passage of the sample rack 400 between the sample holder 110 and the transfer rail 220, and specifically, when the stopper 1121 is in the first position, the stopper 1121 stops the feed opening 111 of the sample holder 110, so that the sample rack 400 cannot move into or out of the sample holder 110, and the stopper 1121 plays a role in stopping; when the stopper 1121 is in the second state, since the stopper 1121 does not block the feeding port 111 of the sample holder 110, at this time, the sample holder driving mechanism 250 can drive the sample holder 400 to be transferred between the sample holder 110 and the transfer rail 220. It should be noted that, the transfer track 220 may be correspondingly provided with a sensor to detect whether the sample rack 400 moves in or out, and it can be understood that, in some embodiments, the position and the transmission condition of the sample rack 400 may be set in some structures according to the technical solution of the present application, and are not described herein again.

Referring to fig. 4, in some embodiments, the sample rack storage device 100 includes a plurality of sample holders 110, and the sample rack transfer device 200 can interface with the plurality of sample holders 110 of the sample rack storage device 100 to effect transfer of sample racks 400 on the plurality of sample holders 110. It should be noted that, when the transfer track 220 of the sample rack transfer device 200 cannot adjust the conveying direction, in order to facilitate taking and placing the sample rack 400 in the plurality of sample holders 110, the material conveying openings 111 of the plurality of sample holders 110 may be arranged side by side on the side facing the transfer track 220. In this embodiment, the sample rack transferring apparatus 200 further includes a moving component 270, and the moving component 270 is configured to move the mounting rack 210, so that the transfer rails 220 on the mounting rack 210 are respectively abutted with the material delivery openings 111 of the plurality of sample holders 110.

Specifically, referring to fig. 9, the moving assembly 270 includes a translation guide 271 and a driving motor 272; the translation guide 271 extends transversely along the feeding ports 111 of the plurality of sample holders 110; the mounting frame 210 is slidably connected to the translation guide 271, and the driving motor 272 drives the mounting frame 210 through a screw assembly or a belt assembly. Take the belt subassembly transmission mode as an example, belt subassembly 273 includes synchronizing wheel 2731 and driving wheel area 2732, and driving wheel area 2732 cover is established on driving motor 272's output shaft and synchronizing wheel 2731, and like this, when driving motor 272 corotation or reversal, can drive mounting bracket 210 along translation guide rail 271 removal through driving wheel area 2732, and then can dock the defeated material mouth 111 that shifts track 220 and each sample seat 110 of sample frame storage device 100.

As shown in fig. 8 and 9, the mounting frame 210 includes two side walls 210a and a bottom wall 210b connected to the bottom of the side walls 210 a; the two side walls 210a and the bottom wall 210b enclose an installation space for accommodating the swing arm 230, the transfer rail 220, the driving mechanism 250, and the like. The transfer rail 220 is mounted on the sidewall 201a of the mounting frame 210. in this embodiment, the wiring board 212 is disposed on the inner surface of the sidewall 210a of the mounting frame 210 to facilitate wiring, and the wiring board 212 is disposed to reinforce the strength of the mounting frame 210.

Referring to fig. 9, in some embodiments, the inner side of the transfer rail 220 is provided with a spring roller mechanism 260; the elastic pressing roller mechanism 260 is used for pressing the sample rack 400 sliding through the transfer track 220 to one side of the transfer track 220, so as to eliminate a gap between the sample rack 400 and the one side of the transfer track 220, and ensure the relative dimensional accuracy of the sample rack 400 on the transfer track 220 in the direction of the translation guide 271, so that the sample rack 400 can move along the transfer track 220 smoothly, and the elastic pressing and pressing can also prevent the sample rack 400 from being rushed out of the transfer track due to the over-high speed of the sample rack 400 in the transfer process. Specifically, the biasing roller mechanism 260 includes a roller 261 and a biasing member 262; the roller 261 is connected to one side 220a of the transfer rail 220 by a biasing member 262, and is abutted against the other side 220b of the transfer rail 220 by the biasing member 262. It is understood that the biasing member 262 may be a torsion spring or a compression spring, or an elastic body made of an elastic material.

Referring to fig. 9, the rocker arm 230 is rotatably connected to the mounting bracket 210 via a bearing 233; the rocker arm 230 has a first end 230a and a second end 230b on either side of a bearing 233. The reset component is a pressure spring 240; both ends of the compression spring 240 are connected to the mounting bracket 210 and the swing arm 230, respectively, and precisely, both ends of the compression spring 240 abut between the mounting bracket 210 and the swing arm 230. The second end 230b of the rocker arm 230 rotates around the bearing 233 under the pressing action of the compression spring 240, so as to drive the rotating member 1123 to rotate around the hinge 1124, and the stopper 1121 moves to the second state.

Referring to fig. 9 and 10, in the above embodiment, the spring guide bar mounting plate 211 is disposed on the mounting bracket 210; a guide spring rod 213 is fixed on the guide spring rod mounting plate 211, and a pressure spring 240 is sleeved on the guide spring rod 213; so as to prevent the pressure spring 240 from deviating from the axis during the expansion and contraction movement, and further ensure that the pressure spring 240 presses the swing arm 230 along the axial direction thereof, so as to obtain better elastic performance. It should be noted that, as shown in fig. 7, the swing arm 230 may be provided with a through hole 234 to movably sleeve the swing arm 230 on the spring guide rod 213, so that the pressure spring 240 may abut against the through hole 234 of the swing arm 230.

Referring to fig. 11, in some embodiments, to facilitate the sample rack 400 to pass through the transfer rail 220, the transfer rail 220 has a guide opening 221. The transfer track 220 is provided with a notch 222 for the scanner 290 to scan the sample information in the sample holder 400.

Referring to fig. 9 and 10 concurrently, in some embodiments, the sample rack drive mechanism 250 includes a guide structure, a sample rack drive assembly 252, and a sample rack grasping assembly 253; a guide structure is arranged on the mounting frame 210 in parallel to the transfer rail 220, and the sample frame driving assembly 252 is used for driving the sample frame grabbing assembly 253 to move along the guide structure; the sample rack gripping assembly 253 is used to grip or release the sample rack 400. Since the guide structure is parallel to transfer rail 220, sample rack gripping assembly 253 can move sample rack 400 into or out of transfer rail 220 as sample rack drive assembly 252 drives sample rack gripping assembly 253 to move along the guide structure. It is understood that the guiding structure is a linear guide 251 provided on the bottom wall 210b of the mounting bracket 210 or a guiding slide slot provided on the inner surface of the side wall 210a of the mounting bracket 210.

In the embodiment described above with reference to fig. 11, the sample rack gripping assembly 253 is slidably connected to the linear guide 251 through the slide seat 254; the top of the sliding seat 254 is provided with an abutting inclined surface 2541; when the sample rack gripping assembly 253 does not move the sample rack 400, the sample rack driving assembly 252 moves the sample rack gripping assembly 253 to the first end 230a of the rocker arm 230 through the sliding seat 254, at this time, the rocker arm 230 rotates around the bearing 233 because the first end 230a of the rocker arm 230 moves up along the abutting inclined surface 2541 of the sliding seat 254, and further when the first end 230a of the rocker arm 230 is pressed upwards by the sliding seat 254, the second end 230b of the rocker arm 230 rotates downwards around the bearing 233 to leave the rotating member 1123 of the stopping mechanism 112, so that the rotating member 1123 drives the stopping member 1121 to move to the first state along with the elastic force of the compression spring 1122 without being pressed by the rocker arm 230. The sample holder 400 is prevented from slipping out of the sample port 111 of the sample holder 110 by blocking the port 111.

In the above embodiment, when the sliding seat 254 leaves the first end 230a of the rocker arm 230 along the linear guide 251, no external force is applied to press the first end 230a of the rocker arm 230 upwards, and therefore, under the driving of the pressure spring 240, the second end 230b of the rocker arm 230 presses the rotating member 1123 of the stopping mechanism 112 upwards, so that the rotating member 1123 overcomes the elastic force of the pressure spring 1122 to rotate relative to the hinge member 1124, and further the stopping member 1121 is moved to the second state.

Referring to fig. 11, in some embodiments, the first end 230a of the rocker arm 230 is provided with a first rolling bearing 231 and the second end 230b of the rocker arm 230 is provided with a second rolling bearing 232. Therefore, in the process that the sliding seat 254 presses the first end 230a of the rocker arm 230 upward, the first rolling bearing 231 rolls along the abutment slope 2541 of the sliding seat 254. Accordingly, during the process that the second end 230b of the rocker arm 230 presses upward against the rotating member 1123 of the stopper mechanism 112, the relative movement between the second rolling bearing 232 and the rotating member 1123 is rolling. This rolling manner has less friction than the sliding manner, and this structure achieves a surface rolling contact, making the relative movement between the rocker arm 230 and the sliding seat 254 and the rotary member 1123 smoother.

Referring to fig. 9 and 10 together, in some embodiments, the sample rack drive assembly 252 includes a drive wheel 2521, a driven wheel 2522, a timing belt 2523, and a motor 2524. The driving wheel 2521 is mounted on an output shaft of the motor 2524, the driven wheel 2522 is fixed on the mounting frame 210, and the synchronous belt 2523 is sleeved on the driving wheel 2521 and the driven wheel 2522. The sliding seat 254 is connected with the synchronous belt 2523, and when the driving wheel 2521 is driven by the motor 2524 to rotate, the synchronous belt 2523 drives the sliding seat 254 to move along the guide structure. The specimen rack gripping assembly 253 is mounted on the slide block 254 for movement with the slide block 254 along the guide structure. Specifically, the sample rack gripping assembly 253 comprises an electromagnet 2531 and an electromagnet push rod 2532; the electromagnet push rods 2532 can move up and down telescopically to lock or release the connection with the sample rack 400. It can be understood that the bottom of the sample holder 400 is provided with a hanging hole, so that the electromagnet push rod 2532 can extend and retract at the hanging hole, and the sample holder 400 can be grabbed or released. Of course, the sample rack gripping assembly 253 may also be used to achieve gripping or releasing of the sample rack 400 in other manners, such as by using a pneumatic cylinder with telescopic capability.

As shown in conjunction with fig. 2, 3, 12, and 13, in some embodiments, the sample rack transport device 300 includes a track assembly 310, a transport block mechanism 330, a track transfer mechanism 340, and a sample rack catch mechanism 350; specifically, the transmission blocking mechanism 330 and the track transfer mechanism 340 are fixed on one side of the track assembly 310 through the mounting base 320; wherein the transport blocking mechanism 330 is used for blocking the sample rack 400 in the transport channel of the track assembly 310 to prevent the sample rack 400 from slipping off the transport channel of the track assembly 310; the track transfer mechanism 340 is used to transfer the sample rack 400 between multiple transport lanes of the track assembly 310 so that the sample rack 400 may be transported within different transport lanes. The sample rack stop mechanism 350 is disposed on the other side of the track assembly 310, and is located between the sample rack transfer device 200 and the track assembly 310. The sample rack stop mechanism 350 is used to block or unblock the transport path of the track assembly 310. Specifically, when no sample rack 400 is transferred between the sample rack transfer device 200 and the track assembly 310, the sample rack catch mechanism 350 blocks the transfer passage of the track assembly 310 to prevent the sample rack from slipping off the track assembly 310; when it is desired to transfer a sample rack 400 between the sample rack transfer device 200 and the track assembly 310, the sample rack transfer device 200 actuates the sample rack catch mechanism 350 to open the transfer channel of the track assembly 310 for the sample rack 400 to pass through.

It is understood that, in the above embodiments, the sample rack transfer device 200 can drive the sample rack stopper mechanism 350 to open the transmission channel of the track assembly 310 when the sample rack 400 is transferred, and specifically, only when the transfer track 220 of the sample rack transfer device 200 is in butt joint with the transmission channel of the track assembly 310, the sample rack transfer device 200 can drive the structure of the sample rack stopper mechanism 350 blocking the transmission channel away. As shown in fig. 7 and 12, a guide block 280 is disposed on the sample rack transfer device 200, and when the transfer track 220 of the sample rack transfer device 200 is butted against the transfer passage, the guide block 280 drives the sample rack catch mechanism 350 to open the transfer passage. It should be noted that the guide block 280 serves as a structure for driving the sample rack stopper mechanism 350, and the installation position thereof can be variously selected. As shown in fig. 7, the guide block 280 is mounted below the transfer track 220 such that when the sample rack transfer device 200 moves laterally relative to the track assembly 310 (perpendicular to the track assembly transport direction), the guide block 280 may traverse the sample rack stop mechanism 350, thereby driving the structure blocked at the transport path away to open the transport path.

In the above embodiment, the docking of the transfer rail 220 with the transport passage means that the relative positions of the transfer rail 220 and the transport passage are in a state in which the sample rack 400 can be transferred therebetween. As shown in fig. 12, when the transfer rail 220 of the sample rack transfer device 200 and the transport path of the rail assembly 310 are not docked, the guide block 280 provided on the sample rack transfer device 200 does not drive the sample rack catch mechanism 350, and at this time, the sample rack catch mechanism 350 blocks the transport path of the rail assembly 310 to prevent the sample rack 400 in the transport path from sliding out of the rail assembly 310. Accordingly, in order to transfer the sample rack 400 between the sample rack transfer device 200 and the rail assembly 310, it is necessary to place the sample rack stopper mechanism 350 in a state of conducting the transfer path while the transfer rail 220 is docked with the transfer path. Specifically, as shown in fig. 14 to 17, in the case that the track assembly 310 has a plurality of transmission channels, when the transfer track 220 is docked with any one of the transmission channels of the track assembly 310, the guide block 280 on the sample rack transfer device 200 drives the sample rack catch mechanism 350 to open the corresponding transmission channel docked with the transfer track 220. That is, the transfer path that is docked with the sample rack transfer device 200 can be conducted by docking between the sample rack transfer device 200 and each transfer path, so that it is not necessary to provide a separate driving structure and corresponding control device.

Referring to fig. 14-17, in some embodiments, the sample rack stop mechanism 350 includes a mounting plate 351, a stop 352, and a resilient element; the mounting plate 351 is fixed on one side of the transmission channel close to the sample rack transferring device 200; the blocking piece 352 is connected with the mounting plate 351, and the blocking piece 352 can move between a blocking position and a conducting position relative to the mounting plate 351; the elastic element is arranged between the blocking piece 352 and the mounting plate 351 so that the blocking piece 352 is elastically connected with the mounting plate 351 to place the blocking piece 352 in a blocking position; when the transfer track 220 is butted against the transfer passage, the guide block 280 abuts against the blocking piece 352 to place the blocking piece 352 in a conducting position; the blocking position is a position where the blocking piece 352 blocks the transmission channel, and the conducting position is a position where the blocking piece 352 conducts the transmission channel.

In some embodiments, the flap 352 is rotatably coupled to the mounting plate 351 by a swing arm 355; one end of the swing arm 355 is connected to the blocking piece 352, and the other end is sleeved on the rotating shaft of the mounting plate 351. The arm of force of the guide block 280 to the stop piece 352 can be extended by the swing arm 355, so that the guide block 280 can overcome the force of the elastic element to the stop piece 352 to smoothly press the stop piece 352.

In some embodiments, the mounting plate 351 is provided with a stop element for holding the swing arm 355 in a position where the flap 352 blocks the transport path. The stop piece 352 is prevented from protruding too far out of the transfer track under the action of the elastic element to interfere with other structures, and the limiting element can limit the elastic element to a state with an initial deformation amount, so that when the guide block 280 leaves with the sample rack transfer device 200, the elastic element has a larger elastic restoring force to quickly restore the stop piece 352 to a state of blocking the transfer channel.

In some embodiments, the spacing element may be a spacing pin; the swing arm 355 is rotated about the rotation shaft by the elastic member to finally abut on the stopper pin. The elastic element may be a compression spring or a tension spring, and both ends of the compression spring or the tension spring are respectively connected with the mounting plate 351 and the swing arm 355. Of course, the elastic element may also be a torsion spring sleeved on the rotation shaft, and the torsion spring is connected to the swing arm 355. A torsion spring is provided in a rotation space of the swing arm 355 about the rotation shaft with respect to the mounting plate 351, and the space occupied by the elastic member is small.

In some embodiments, the sample rack stop mechanism 350 comprises a plurality of equal stops 352 and swing arms 355, the plurality of swing arms 355 are disposed across the mounting plate 351, and the intersecting swing arms 355 are recessed at the overlapping positions of the rotation paths to avoid interference. The arm length of the swing arm 355 is increased by the crossing arrangement of the swing arm 355, so that the guide block 280 drives the swing arm 355 to rotate around the rotating shaft against the elastic force of the elastic element, thereby ensuring that the blocking piece 352 is driven to open the transmission channel of the track assembly 310.

It should be noted that the number of the stop pieces 352 of the sample rack stop piece mechanism 350 can be adjusted according to the transmission channel actually required to be blocked by the track assembly 310; the structure of the sample holder stopping mechanism 350 will be further described below by taking the example of the track assembly 310 having three transmission channels.

As shown in conjunction with fig. 14-17, in some embodiments, the track assembly 310 includes a first transport channel 311, a second transport channel 312, and a third transport channel 313; accordingly, the sample rack barrier mechanism 350 includes a first barrier 3521, a second barrier 3522, a third barrier 3523, a first swing arm 3551, a second swing arm 3552, and a third swing arm 3553; one end of each of the first swing arm 3551, the second swing arm 3552 and the third swing arm 3553 is connected to the first stop 3521, the second stop 3522 and the third stop 3523, the other end of each of the first swing arm 3551 and the third swing arm 3553 is rotatably connected to a first rotating shaft 3561 of the mounting plate 351, and the other end of each of the second swing arm 3552 is rotatably connected to a second rotating shaft 3562 of the mounting plate 351. The first swing arm 3551 and the third swing arm 3553 are rotatably connected with the mounting plate 351 through a first rotating shaft 3561, so that the number of rotating shafts is reduced; in addition, the first swing arm 3551 and the second swing arm 3552 are disposed in a crossing manner, and the second swing arm 3552 is provided with a groove 3554, so that the rotational movements of the first swing arm 3551 and the second swing arm 3552 relative to the mounting seat 351 do not interfere with each other, and the first blocking piece 3521 and the second blocking piece 3522 can be driven away from the first conveying channel 311 and the second conveying channel 312 by the guide block 280, respectively.

As shown in fig. 18 to 26, in the above embodiment, the first torsion spring 3531 and the second torsion spring 3532 are respectively sleeved on the first rotating shaft 3561 and the second rotating shaft 3562; the first torsion spring 3531 elastically presses the first swing arm 3551 and the third swing arm 3553 against the first stopper pin 3571 and the third stopper pin 3573, respectively. That is, the first and

third swing arms

3551 and 3553 are rotated about the first rotation axis 3561 by the first torsion spring 3531, which saves the installation space to provide the swing arm 355 and the stopper 352 as much as possible in the limited installation space of the installation plate 351. As shown in fig. 18 and 22, the second torsion spring 3532 is used for elastically pressing the second swing arm 3552 against the second limit pin 3572, so that the second stop 3522 stops at the second transmission channel 312.

In the above embodiment, the guide block 280 conducts the passage of the transfer rail 220 and the transfer passage by driving the barrier 352 blocking the transfer passage interfacing with the transfer rail 220 without affecting the barrier 352 blocking the other transfer passage. Specifically, referring to fig. 15 to 17, when the transfer rail 220 is abutted to the first transmission channel 311, the guide block 280 abuts against the first blocking piece 3521 to place the first blocking piece 3521 at the conducting position; when the transfer rail 220 is butted against the second conveying channel 312, the guide block 280 abuts against the second stop 3522 to place the second stop 3522 at the conducting position; when the transfer rail 220 is butted against the third transfer channel 313, the guide block 280 abuts against the third stopper 3523 to place the third stopper 3523 in a conducting position.

Referring to fig. 19-26, in some embodiments, the guide block 280 drives the flap 352 that abuts the transport path that interfaces with the transfer track 220 of the sample rack transfer device 200 as the sample rack transfer device 200 traverses the transport paths of the track assembly 310 to open the transport path that interfaces with the transfer track 220. Specifically, the outer side of the blocking piece 352 is connected with a rolling piece below the transmission channel, and two sides of the guide block 280 are provided with slopes 281; as the guide block 280 translates past the stop 352, the roller member abuts the ramp 281 and slides along the ramp 281. The guide block 280 can be smoothly moved laterally from one side of the flap 352 while the flap 352 is moved away from the transfer path by the pressing of the guide block 280 against the roller. It will be appreciated that the rolling member may be a roller 354 roll-connected to the flap 352 by an axle pin.

As shown in connection with fig. 13, 27, and 28, in some embodiments, transport blocking mechanism 330 includes a blocking member 331, a connecting member 332, and a rocker 333; one end 332a of the connecting member 332 is hinged to the blocking member 331, and the other end 332b of the connecting member 332 is hinged to the swing link 333; the swing rod 333 drives the blocking piece 331 to rotate between the first position and the second position through the connecting piece 332; the hinged position of the connecting member 332 and the swing rod 333 is provided with a limiting structure, so that the blocking member 331 can be still kept at the first position without interference of external force.

The first position is a position when the blocking member 331 blocks the transmission channel, and the second position is a position when the blocking member 331 conducts the transmission channel.

In some embodiments, one end 331a of the blocking member 331 is disposed at one side of the transmission path by rotation, and the other end 331b of the blocking member 331 is switchable between a first position and a second position with the rotation of the blocking member 331 to block or conduct the transmission path. Specifically, one end 331a of the blocking member 331 is rotatably coupled to the mounting base 320, and the blocking member 331 is mounted on one side of the transfer passage through the mounting base 320.

In some embodiments, the swing link 333 is capable of rotating relative to the mounting base 320 about the rotating shaft 334 so as to rotate the blocking member 331 relative to the transmission channel via the connecting member 332.

In some embodiments, the transmission blocking mechanism 330 further includes a motor 335 or a cylinder for driving the swing link 333 to swing about the axis of the rotating shaft 334.

Referring to fig. 28 and 29, in some embodiments, the swing link 333 is provided with a light blocking plate 336, the mounting base 320 is provided with a sensing device connected to the motor 335 or the cylinder, and the sensing device is disposed on a track of the light blocking plate 336 moving along with the swing link 333. It can be understood that the sensing device can detect the rotation angle of the swing link 333, so as to ensure that the blocking member 331 is located at the first position or the second position; in this embodiment, the sensing devices may be a first sensing element 337 and a second sensing element 338; when the first sensing element 337 detects the light blocking sheet 336, the blocking member 331 is located at the first position; when the second sensing element 338 detects the light blocking piece 336, the blocking member 331 is located at the second position.

Referring to fig. 29 and 30 together, in some embodiments, the limiting structure is a limiting groove formed on one of the connecting member 332 and the swing link 333; when the other of the connecting member 332 and the swing link 333 rotates to the limit position in the limiting groove, the blocking member 331 is located at the first position or the second position. In this embodiment, the limit groove 323 is formed in the swing link 333, and the connecting member 332 rotates between the

edges

323a and 323b of the limit groove 323 with respect to the swing link 333. Specifically, as shown in fig. 29, when the connecting member 332 swings to abut against the side edge 323a of the limiting groove 323, the blocking member 331 is in the first position, and blocks the sample rack 400 in the transmission channel of the track assembly 310, so as to prevent the sample rack 400 from slipping off the track assembly 310. As shown in fig. 30, when the connecting member 332 swings to abut against the side edge 323b of the limiting groove 323, the blocking member 331 is at the second position, so that the transmission channel of the track assembly 310 is in a conduction state, and the sample holder 400 can move through the track assembly 310 to other structures or devices that are abutted against the track assembly 310. When the rotation between the connecting member 332 and the swing rod 333 passes through a dead point, and the included angle between the connecting member 332 and the swing rod 333 is an obtuse angle, a self-locking structure is further formed between the connecting member 332 and the swing rod 333, so that the blocking member 331 can be maintained at the first position without external force, and the phenomenon that the equipment load is too large when an external power source is adopted to maintain the state of the blocking member 331 is avoided.

In other embodiments, the limiting structure is a first limiting edge and a second limiting edge disposed on the connecting member 332 and/or the swing link 333, and the connecting member 332 and the swing link 333 rotate relatively between the first limiting edge and the second limiting edge; when the connecting member 332 and the swing link 333 are stopped at the first limiting edge or the second limiting edge, the blocking member 331 is located at the first position or the second position; when the blocking member 331 is located at the first position, the connecting member 332 and the swing link 333 rotate past the dead point, so that when the included angle between the connecting member 332 and the swing link 333 is an obtuse angle, a self-locking structure can be formed, the blocking member 331 is maintained at the first position without an external force, and the sample rack 400 is further blocked from passing through the transmission channel of the track assembly 310, so as to prevent the sample rack 400 from slipping off the track assembly 310.

It should be noted that, in the above embodiment, the installation position of the transmission blocking mechanism 330 on the rail assembly 310 is not limited, and may be disposed at the end or the middle of the rail assembly 310 according to actual needs; of course, it is understood that the blocking member 331 of the transport blocking mechanism 330 may prevent the sample rack 400 from passing through the track assembly 310 and blocking the sample rack 400 at a position of the transport path of the track assembly 310 for further manipulation of the sample rack 400 by other mechanisms or devices; when the stop 331 is in the second position, the transfer channel of the track assembly 310 may allow the sample rack 400 to continue to be transferred to a structure or device that interfaces with the track assembly 310.

In some embodiments, as shown in conjunction with fig. 12, 13, and 27, the rail transfer mechanism 340 includes a fork 341, a cross rail 342, and a fork drive mechanism 343; the fork driving mechanism 343 is configured to drive the fork 341 to move transversely (perpendicular to the extending direction of the transport channel) along the transverse rail 342 at the sample rack output port of the transport channel, so as to move the sample rack 400 to other transport channels, so that the sample rack 400 can be transported in different transport channels. Specifically, the fork member 341 includes a plurality of push plates 3411 arranged at intervals; one ends of a plurality of push plates 3411 are slidably connected to the lateral guide rails 342 through slide blocks 3413, and the other ends extend in parallel with the extending direction of the transport path; the adjacent push plates 3411 define therebetween a notch 3412 into which the sample holder 400 is moved. When the sample holder 400 moves from one of the transport channels of the rail assembly 310 into the notch 3412, the fork driving mechanism 343 drives the fork 341 to move along the cross rail 342, and the push plate 3411 pushes the sample holder 400 to the other transport channel of the rail assembly 310, so that the sample holder 400 can be transported in the different transport channel.

In some embodiments, the fork drive mechanism 343 includes a timing belt 3431, a track change motor 3432, a connecting piece 3433, a driving wheel 3434, and a driven wheel 3435; the synchronous belt 3431 is sleeved on the driving wheel 3434 and the driven wheel 3435, and the shifting fork 341 is connected with the synchronous belt 3431 through a connecting piece 3433; the drive pulley 3434 is connected to an output shaft of the orbital transfer motor 3432. When the sample rack 400 needs to be moved to different transmission channels, the track-changing motor 3432 drives the driving wheel 3434 to rotate, so that the synchronous belt 3431 drives the fork 341 to move along the transverse guide rail 342, and the sample rack 400 is moved to different transmission channels for transmission.

In some embodiments, the track transfer mechanism 340 and the transport barrier mechanism 330 are mounted at the sample rack output port of the first transport lane 311 by the mount 320; thus, when the sample rack 400 is transferred between different transport channels, the sample rack 400 is stopped by the transport blocking mechanism 330 at the sample rack output port of the first transport channel 311, and then moved to the second transport channel 312 or the third transport channel 313 by the track changing mechanism 340. It can be understood that the first transmission channel 311 and the second transmission channel 312 may be a common sample loading channel and a fast sample loading channel in some specific applications, and the fast sample loading channel is used to analyze some emergency samples. On the basis, the third transport channel 313 can be used as a sample return channel, so that the sample rack 400 with the detected or taken sample can be returned to the transfer track 220 of the sample rack transfer device 200 through the third transport channel 313 and transferred to the sample seat 110 of the sample rack storage device 100 through the sample rack transfer device 200, thereby realizing the circulation of the sample rack loading system.

In some embodiments, a chemiluminescent detector comprises the sample holder loading system of the above embodiments.

In some embodiments, a sample rack loading method comprises the steps of:

(a) the sample rack transfer device 200 moves to one end of the transport channel of the rail assembly 310 so that the transfer rail 220 of the sample rack transfer device 200 is docked with the transport channel of the rail assembly 310;

(b) the sample rack drive mechanism 250 transfers the sample rack 400 from the transfer track 220 into the transport channel of the track assembly 310.

In step (a), the sample rack transfer device 200 presses the blocking piece 352 blocked on the transmission channel, so that the blocking piece 352 is communicated with the transmission channel. So that the sample rack 400 can be transferred from the transfer rail 220 into the transfer passage. Specifically, when the transfer rail 220 is abutted to the transfer passage, the guide block 280 provided on the sample rack transfer device 200 moves along with the sample rack transfer device 200 to drive away the stopper 352 blocked on the transfer passage, thereby conducting the transfer passage.

In some embodiments, before step (a), the loading method further comprises the steps of:

(a1) the sample rack transfer device 200 moves to the sample holder 110 of the sample storage device, so that the transfer rail 220 of the sample rack transfer device 200 is butted against the material delivery port 111 of the sample holder 110.

In step (a) and/or step (a1), the sample rack drive assembly 252 holds the sample rack grasping assembly 253 at the first end 230a of the swing arm 230 such that the sample rack grasping assembly 253 presses against the first end 230a of the swing arm 230 to move the second end 230b of the swing arm 230 away from the catch mechanism 112. Thereby enabling the stopping mechanism 112 to block the material feeding port 111 of the sample holder 110, so as to prevent the sample rack 400 from sliding out and affecting the operation of the apparatus.

In some embodiments, after step (a1) and before step (a), the loading method further comprises the steps of:

(a2) the sample rack drive assembly 252 of the sample rack transfer device 200 moves the sample rack gripping assembly 253 of the sample rack transfer device 200 to below the sample holder 110;

(a3) the sample rack grasping assembly 253 locks the sample rack 400 in the sample holder 110;

(a4) the sample rack drive assembly 252 drives the sample rack gripping assembly 253 to transfer the sample rack 400 locked by the sample rack gripping assembly 253 to the transfer rail 220;

in the above embodiment, in the steps (a2) to (a4), the sample rack driving assembly 252 moves the sample rack gripping assembly 253 away from the first end 230a of the swing arm 230, and the swing arm 230 rotates under the action of the restoring assembly to press the second end 230b of the swing arm 230 against the stopping mechanism 112, so as to drive the stopper 1121 of the stopping mechanism 112 away from the feeding port 111 of the sample holder 110, so that the sample rack 400 is transferred from the sample holder 110 to the transfer track 220 of the sample rack transfer device 200 under the action of the sample rack driving mechanism 250. It can be seen that, in this embodiment, when the sample rack driving mechanism 250 needs to transfer the sample rack 400 from the sample holder 110, the sample rack driving mechanism 250 drives the stopping mechanism 112 blocked at the material feeding port 111 of the sample holder 110 away accordingly, and therefore, a separate control mechanism is not needed for selecting the state of the stopping mechanism 112 conducting the material feeding port 111.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A sample rack transfer device for moving a sample rack out of or into a sample holder; the sample seat is provided with a material conveying port for the sample rack to move out or in, and a stop mechanism is arranged at the material conveying port of the sample seat; the stopping mechanism has a first state of stopping the material conveying port and a second state of conducting the material conveying port, and is characterized in that the sample frame transfer device comprises a mounting frame, a transfer track, a rocker arm, a reset assembly and a sample frame driving mechanism; the mounting frame supports the transfer rail on one side of the material conveying opening; the rocker arm is rotatably connected to the side wall of the mounting frame and is provided with a first end and a second end which are opposite; the reset assembly drives the rocker arm to rotate so that the second end of the rocker arm abuts against the stop mechanism and the stop mechanism is in a second state; the sample rack driving mechanism comprises a sample rack grabbing component and a sample rack driving component; the sample rack grabbing component is used for grabbing or releasing the sample rack; the sample frame driving assembly drives the sample frame grabbing assembly to move along the transfer track, so that the sample frame grabbing assembly can be abutted to the first end of the rocker arm through the sliding seat, an abutting inclined plane is arranged at the top of the sliding seat and used for abutting against the first end of the rocker arm when the sliding seat is close to the first end of the rocker arm, the first end of the rocker arm moves upwards along the abutting inclined plane, and the second end of the rocker arm leaves the stopping mechanism, so that the stopping mechanism is in a first state.

2. The sample rack transfer device of claim 1, wherein the sample rack drive mechanism further comprises a guide structure disposed on the mounting rack parallel to the transfer track; the sample frame grabbing assembly is connected with the guide structure in a sliding mode through the sliding seat.

3. The sample rack transfer device of claim 1, wherein the transfer track has a guide opening and/or the transfer track is provided with a notch for a scanner to scan sample information in the sample rack located on the transfer track.

4. The specimen rack transfer device of claim 2, wherein the guide structure is a linear guide or a guide chute opening on an inner sidewall of the mounting rack.

5. The sample rack transfer device of claim 2 or 3, wherein the first end of the rocker arm is provided with a first rolling bearing to roll against the sliding seat when the sliding seat is proximate to the first end of the rocker arm; and the second end of the rocker arm is provided with a second rolling bearing, so that when the second end of the rocker arm is abutted against the stop mechanism, the second rolling bearing is in rolling abutting joint with the stop mechanism.

6. The sample rack transfer device of claim 1, wherein the return assembly is a compression or tension spring; the two ends of the pressure spring or the tension spring are respectively connected with the mounting rack and the rocker arm, and the second end of the rocker arm is pressed on the stop mechanism in a propping mode.

7. The sample rack transfer device of claim 1, wherein the sample rack drive assembly comprises a drive wheel, a driven wheel, a timing belt, and a motor; the driving wheel is mounted on an output shaft of the motor, the driven wheel is fixed on the mounting frame, and the synchronous belt is sleeved on the driving wheel and the driven wheel; the sample frame grabbing component is connected with the synchronous belt; when the motor drives the driving wheel to rotate, the synchronous belt drives the sample frame grabbing assembly to move along the guide structure.

8. The sample rack transfer device of claim 1, wherein the sample rack gripping assembly comprises an electromagnet, an electromagnet ram; the electromagnet ejector rod can move up and down in a telescopic mode so as to lock or release connection with the sample rack.

9. The sample rack transfer device of claim 1, further comprising a spring roller mechanism; the elastic pressing roller mechanism is used for pre-pressing the sample rack sliding through the transfer track on one side of the transfer track so as to enable the sample rack to stably move along the transfer track.

10. The sample rack transfer device of claim 9, wherein the spring roller mechanism comprises a roller and a spring; the roller is connected to one side of the transfer rail through the elastic pressing piece and abuts against the other side of the transfer rail under the action of the elastic pressing piece.

11. A sample rack loading system of a sample rack transfer device according to any of claims 1-10, wherein the sample rack loading system further comprises a sample rack transport device; the sample rack transfer device is arranged between the sample rack storage device and the sample rack transmission device so as to transfer the sample rack between the sample rack storage device and the sample rack transmission device.

12. The sample rack loading system of claim 11, wherein the sample rack storage device comprises a plurality of sample holders arranged in parallel, and the material delivery openings of the plurality of sample holders face the same side of the sample rack transfer device.

13. The specimen rack loading system of claim 12, wherein the specimen rack transfer device further comprises a moving assembly, such that the transfer rails on the mounting rack can be respectively docked with the feeding ports of the plurality of specimen holders for sample rack transfer.

14. The sample rack loading system of claim 13, wherein the movement assembly comprises a translation rail and a drive motor; the translation guide rail transversely extends along the material conveying openings of the sample seats; the mounting bracket sliding connection be in on the translation guide rail, driving motor is used for the drive the mounting bracket is followed the translation guide rail removes.

15. The sample rack loading system according to claim 13, wherein the sample rack transport device comprises a track assembly and a sample rack catch mechanism, the sample rack catch mechanism is disposed on a side of the track assembly adjacent to the sample rack transfer device, and the sample rack catch mechanism is configured to block or unblock a transport path of the track assembly; the sample rack transfer device is provided with a guide block, and when a transfer track of the sample rack transfer device is in butt joint with the transmission channel, the guide block drives the sample rack blocking piece mechanism to conduct the transmission channel; otherwise, the sample rack blocking piece mechanism blocks the transmission channel.

16. The sample rack loading system of claim 15, wherein the sample rack catch mechanism comprises a mounting plate, a catch, and a resilient element; the mounting plate is fixed on one side of the transmission channel, which is close to the sample rack transfer device; the blocking piece is connected with the mounting plate and can move between a blocking position and a conducting position relative to the mounting plate; the elastic element is arranged between the blocking piece and the mounting plate so that the blocking piece is elastically connected with the mounting plate and is arranged at the blocking position; when the transfer track is in butt joint with the transmission channel, the guide block abuts against the blocking piece to place the blocking piece at the conduction position;

17. The specimen rack loading system of claim 11, wherein the stop mechanism comprises a stop member, a resilient member for maintaining the stop member in the first state, the resilient member being configured to press against the stop member and overcome a spring force of the resilient member to place the stop member in the second state.

18. The sample rack loading system of claim 17, wherein the stop mechanism comprises a rotating member and a hinge member; the rotating piece is connected to the sample seat through the hinge piece, and the stop piece extends out and is located at the material conveying opening from the end, close to the material conveying opening, of the rotating piece.

19. The sample rack loading system of claim 18, wherein the hinge is located between the stop and the resilient member; two ends of the elastic piece are respectively abutted against the rotating piece and the sample seat, and the elastic piece can be compressed to allow the rotating piece to rotate around the hinged piece, so that the rotating piece drives the stop piece to move to the second state.

20. The sample holder loading system of claim 19, wherein the resilient member is a compression spring that is compressible when the rotational member rotates about the hinge member to cause the stop member to be in the second state.

21. A chemiluminescent detector comprising the sample holder loading system of any one of claims 11-20.